The Ansul PIRANHATM Restaurant Fire Suppression System is an automatic, pre-
engineered, fire suppression system designed to protect the following areas associated
with cooking equipment; ventilating equipment including hoods, ducts, plenums, and
filters; fryers; griddles and range tops; upright, natural charcoal, or chain-type
broilers; electric, lava rock, mesquite or gas-radiant char-broilers and woks.

FEATURES

UL Listed - Meets Requirements of UL 300

Overlapping Appliance Protection

Two Nozzle Styles Cover All Hazards

Dual Agent

Rapid Flame Knockdown

New Proprietary Agent With Increased Performance

Fifteen Times Faster Than Existing Agents in Reducing the Temperature of
the Grease Below the Re-flash Point

Reliable Cartridge Operated

Aesthetically Appealing

APPLICATION

The PIRANHATM Restaurant Fire Suppression System is an automatic,
pre-engineered, fixed, fire suppression system designed to protect the following areas
associated with cooking equipment; ventilating equipment including hoods, ducts, plenums,
and filters; fryers; griddles and range tops; upright, natural charcoal, or chain-type
broilers; Electric, lava rock, mesquite or gas-radiant char-broilers and woks.

The system is ideally suitable for use in restaurants, hospitals,
nursing homes, hotels, schools, airports, and other similar facilities.

Use of the PIRANHA Restaurant system is limited to interior applications
only. The regulated release and tank assemblies must be mounted in an area where the air
temperature will not fall below 32 °F (0 °C) or exceed 130 °F (54 °C). The system must
be designed and installed within the guidelines of the UL Listed Design, Installation,
Recharge, and Maintenance Manual.

When actuated, the system discharges a fixed amount of proprietary wet
chemical agent followed by water through the same nozzles. Water is provided by a
connection to the potable water supply. Advantages of the dual system over single wet
agent systems include: (1) more robust suppression of hostile fires in protected
restaurant hazards; (2) greater hazard area protection with less wet agent; (3) faster
flame extinguishment and securement of hot fuels such as cooking shortening; (4)
overlapping protection of cooking appliances from fixed nozzle spacing, allowing
appliances to be interchanged freely without changing nozzles; (5) more rapid cooling of
hot fuels and appliances to prevent re-ignition; (6) simplicity of design and
installation.

The addition of the water discharge significantly aids in increasing and
prolonging the foam blanket generated by the wet chemical agent. The longer retention of
the foam blanket allows the hot grease to cool well below the auto-ignition temperature.

Patents are pending for both the new proprietary wet chemical agent and
the dual agent system.

The water spray portion of the system is provided by a connection to the
potable water supply.

The system design for appliance protection under the hood allows the
nozzles to be positioned uniformly from one end of the appliance line to the other. Most
appliances under the hood can be protected in this overlapping manner; therefore, it is
not necessary to protect each appliance individually. Appliances are free to be shifted
around under the hood. The only exceptions to this overlapping type coverage are upright
broilers, salamanders, and chain broilers.

These type appliances require dedicated nozzle protection.

The system is capable of automatic detection and actuation and/or remote
manual actuation. Additional equipment is available for mechanical or electrical gas line
shut-off applications.

The detection portion of the fire suppression system allows for
automatic detection by means of specific alloy rated fusible link detectors, which, when
the temperature exceeds the rating of the link, the link separates, allowing the regulated
release to actuate.

A system owner's guide is available containing basic information
pertaining to system operation and maintenance. A detailed technical manual is also
available including system description, design, installation, recharge, and maintenance
procedures, plus additional equipment installation and resetting instructions.

The system is installed and serviced by authorized distributors that are
trained by the manufacturer.

The basic system consists of an ANSUL AUTOMAN
regulated release assembly that includes a regulated release
mechanism and a wet chemical storage tank housed within a single
enclosure. The tank valve is designed to allow the wet chemical
agent to discharge onto the hazard area first.

Then, immediately following the agent
discharge, the valve will automatically allow the water to flow
through the piping and out the system nozzles. Nozzle blow-off
caps, detectors, cartridges, agent, fusible links, and pulley
elbows are supplied in separate packages in the quantities needed
for the fire suppression system arrangement.

Additional equipment includes remote manual
pull station, mechanical and electrical gas valves, pressure
switches, and electrical switches for automatic equipment and gas
line shut-off. Accessories can be added such as warning lights,
etc., to installation where required.

The water supply piping includes a lockable valve.

Each tank is limited to a listed maximum number of nozzles.

COMPONENT DESCRIPTION

Wet Chemical Agent: The PRX®
extinguishing agent is a specially-formulated, aqueous solution
of inorganic salts designed for rapid flame knockdown and foam
securement of grease related fires. It is available in 4.5 gallon
(17 L) plastic containers with instructions for wet chemical
handling and usage.

Agent Tank: The agent tank is installed
in a stainless steel enclosure. The tank is deep drawn carbon
steel finished in red enamel.

Tanks are available in three (3) sizes:

PIRANHA-7: 1.5 gallon (5.7 L) capacity

PIRANHA-10: 2.25 gallon (8.5 L) capacity

PIRANHA-13: 3.0 gallon (11.4 L) capacity

The tanks have a working pressure of 150 psi
(10.3 bar), a test pressure of 450 psi (31.0 bar), and a minimum
burst pressure of 900 psi (62.1 bar).

The tank includes an adaptor/tube assembly. The
adaptor is chrome-plated steel with 1/4 in. NPT female low
pressure gas inlet port and a 3/8 in. NPT female agent outlet
port. The adaptor also contains a bursting disc seal that
prevents the siphoning of agent up the pipe during extreme
temperature variations.

Connected to the adaptor/tube assembly is the
water flow valve. This valve is designed to allow the wet
chemical agent to flow first and then the valve will
automatically switch internally to allow the water to start
flowing, thus increasing the foam blanket and providing
additional cooling.

Regulated Release Mechanism: The
regulated release mechanism is a spring-loaded,
mechanical/pneumatic type capable of providing the expellant gas
supply to the agent tank. It contains a factory installed
regulator deadset at 150 psi (10.3 bar) with an internal relief
of approximately 190 psi (13.1 bar). It has automatic actuation
capabilities by a fusible link detection system and remote manual
actuation by a mechanical pull station.

The regulated release mechanism contains a
release assembly, regulator, and expellant gas hose in a
stainless steel enclosure with cover. The enclosure contains
knockouts for 1/2 in. conduit. The cover contains an opening for
a visual status indicator.

The regulated release assembly also contains an
anti-siphon valve that is designed to prevent back-siphonage of
possible contaminated water into a potable water supply.

It is compatible with mechanical gas shut-off
devices; or, when equipped with a field or factory installed
switch, it is compatible with electric gas line or appliance
shut-off devices.

Discharge Nozzles: Two types of
discharge nozzles are tested and listed with the PIRANHA system
for all applications. One type is used for all appliance and
plenum protection and is stamped "AP," and the other
type is used for all duct protection and is stamped
"DL." Each nozzle must have a metal or rubber blow-off
cap to keep the nozzle tip orifice free of cooking grease
build-up.

CODES AND STANDARDS

The PIRANHA Fire Suppression system will meet
the following codes, standards, and recommended practices: